Improvement in spike-bars



a. DOUGLASS. Spike-Bars.

Patented Oct. 28,1873.

UNITED STATES PATENT OFFICE.

GEORGE DOUGLASS, OF BBIDGEPOBT, CONNECTICUT.

IMPROVEMENT IN SPIKE-BARS.

Specification forming part of Letters Patent No. 144,074, dated October28, 1873; application filed August 16, 11573.

To all whom it may concern:

Be it known that I, GEORGE DOUGLASS, of Bridgeport, in the county ofFairfield and State of Connecticut, have invented a new and usefulImprovement in Spike-Bars, of which the following is a specificationBars for drawing spikes on railroad-tracks and in other places are veryliable to be broken, and they fail first in the claws. In fact, the clawis the only part liable to fail,

and if one claw fails the bar is rendered usesponding parts.

A is the lever, which is formed with a socket, B, in its end. Thissocket is preferably square or angular and made in the enlarged end ofthe lever, as represented in the drawing. C and D are the claws, whichare made with from each shank.

shanks E F, which fit into and fill the socket B. G G are shoulderswhich, when the claws are in the socket, rest against the end of thelever. H is a pin, which passes through a hole which is bored throughthe socket and through the jaws, so as to cut a half circle This pin ismade somewhat tapering, so that it can readily be withdrawn. The jawsare made in the usual form, so that when they are fastened in place, asseen in the drawing, the bar may be used in the usual manner, and forall the purposes to which such bars are usually applied. If one of thejaws fail a duplicate jaw, which is kept on hand, is inserted, so thatno time is lost. The jaws may be made in pairs to fit spikes ofdifferent shapes, or to adapt the bar for other purposes, as may bedesired.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A spike-bar having its jaws made separate, andremovably attached to the lever, substantially as shown and described,and for the purposes set forth.

Witnesses: GEORGE DOUGLASS.

SAMUEL LINE, THEODORE E. VEIT.

